Manufacturer reference: 8291DA
WÖSSNER forged piston, manufactured in Germany by engine part specialists. Designed for roadster applications and engines requiring a part resistant to thermal and mechanical stresses, this piston combines the lightweight nature of aluminum with a forging process for a more homogeneous structure than that of a cast piston.
- Bore diameter: 72.00 mm
- Piston diameter: Ø 71.940 mm (oversize letter: A)
- Material: Forged aluminum
- Number of rings: 1 (delivered with ring(s), circlips, and pin)
- Finish: skirt treated with anti-friction to limit hot friction
The piston is delivered complete with its assembly components (ring(s), circlips, and pin), ready to be mounted after checking clearances and bore. Its skirt receives an anti-friction treatment that helps reduce friction during break-in phases and at high RPM.
Compatibility: this component is suitable for certain 250 cc engine configurations; it is specifically referenced on classic models such as the Bultaco Sherpa Trial 250 (1983), Pursang 250 (1980), and Alpina 250 (1980). Before installation, check the cylinder conformity, bore, and manufacturer tolerances of your engine.
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